You may also like
Worms
Place this "worm" on the 100 square and find the total of the four squares it covers. Keeping its head in the same place, what other totals can you make?
Which Scripts?
There are six numbers written in five different scripts. Can you sort out which is which?
Highest and Lowest
Put operations signs between the numbers 3 4 5 6 to make the highest possible number and lowest possible number.
Age 7 to 11
Challenge Level
If you are working in the USA units then go to
Would you rather...
Be given $60 \%$ of $2$ pizzas or $26 \%$ of $5$ pizzas?
Have $10 \%$ of $ £5$ or $75 \%$ of $80$p?
Be bitten by $15 \%$ of $120$ mosquitoes or $8 \%$ of $250$ mosquitoes?
Skip using a rope which is $54 \%$ of $105$cm long, or $88 \%$ of $2.75$m long?
Sit in a traffic jam for $33 \%$ of $2$ hours or $44 \%$ of $1$hr $40$mins?
Make sure you explain your reasons clearly.
Perhaps you'd like to make up some of your own questions like these and send them to us.
NRICH is part of the family of activities in the Millennium Mathematics Project.